Handle when `source` is not set for whatever reason.
Merge pull request #884 from thezoggy/dev--history_hotfix

Handle when `source` is not set for whatever reason.
Handle when OMG is offline for maint, increase post delay from 20 to 25.
Cleanup how we build our show name list to filter out duplicates that only differ by case, also dont append `.` if search string is empty.
Added priority, device, and sound support to Pushover
Fixed minor typo/logging issues, also handle device lookup js data more gracefully.
Fix config typo: `pyTivo_update_library` -> `pytivo_update_library`
Merge pull request #886 from thezoggy/dev--pushover_update

Pushover notifier update
Merge pull request #885 from thezoggy/dev--omg_update

OMG update
* Convert `_` to `.` in release names for OMG and Womble, fix releases getting rejected by invalid show name.
* OMGWTFNZBs: Skip nuked releases on backlog search.
Womble: Adjust rss feeds used.
Merge pull request #889 from thezoggy/dev--omg_update2

OMG update2
Fix display_all_seasons and default it to on, let people turn it off if they want (slower machines).
Merge pull request #891 from thezoggy/dev--display_all_seasons_fix

display all seasons
Merge remote-tracking branch 'upstream/development' into development